iOS AVPlayer 在 rewind/fastforward 后无法暂停

Question

场景

如果 AVPlayer 正在播放视频，倒回 15 秒并继续播放。
如果AVPlayer暂停，则倒带15秒并保持暂停状态。

问题

调用 seekToTime: 后我无法暂停视频。

问题

如何在调用 seekToTime 后暂停播放器？

我已经尝试了 [Avplayer pause] 以及将 Avplayer.rate 设置为 0。调用 seekToTime.

后没有停止视频

我的代码

@property (strong, nonatomic) AVPlayer *player;
.
.
.
@synthesize player
.
.
.
- (IBAction)rewind:(id)sender {
    NSLog(@"rewind called");

    int secToRewind = DEFAULT_REWIND_SEC;
    int time = CMTimeGetSeconds(player.currentTime) - secToRewind;
    CMTime newTime = CMTimeMakeWithSeconds(time, 1);
    CMTime tolerance = CMTimeMakeWithSeconds(1, 1);

    __weak __typeof__(self) weakSelf = self;
    int playerRate = player.rate;
    [player seekToTime:newTime toleranceBefore: tolerance toleranceAfter: tolerance completionHandler:^(BOOL finished) {

        NSLog(@"seekToTime called");

        __strong __typeof__(self) strongSelf = weakSelf;
        if (playerRate == 0) {
            [player pause];
        }

    }];


}

Answer 1

我猜问题出在内容的缓冲范围内，因为您要倒退 X（应该是 15）秒，所以这很多而且需要一点时间来缓冲内容。

试试下面的代码...

@property (strong, nonatomic) AVPlayer *player;
.
.
.
@synthesize player
.
.
.
- (IBAction)rewind:(id)sender {
    NSLog(@"rewind called");

    int secToRewind = DEFAULT_REWIND_SEC;
    int time = CMTimeGetSeconds(player.currentTime) - secToRewind;
    CMTime newTime = CMTimeMakeWithSeconds(time, 1);
    CMTime tolerance = CMTimeMakeWithSeconds(1, 1);

    __weak __typeof__(self) weakSelf = self;
    int playerRate = player.rate;
    [player seekToTime:newTime toleranceBefore: tolerance toleranceAfter: tolerance completionHandler:^(BOOL finished) {



        do {

          NSLog(@"Successful rewind");

         __strong __typeof__(self) strongSelf = weakSelf;
         if (playerRate == 0) {
             [player playAt:[player currentTime]];
         }

       } while (completed == true);

    }];


}

Answer 2

我找到了导致自动播放的代码。有一个观察员附在玩家身上。每当播放器项目处于 AVPlayerItemStatusReadyToPlay 时，无论 play/pause 状态如何，播放器都被设置为播放该项目。

有修复的代码

case AVPlayerItemStatusReadyToPlay: {

            if ([playButton isSelected]) {
                 [self.player play];
            }


        }

iOS AVPlayer 在 rewind/fastforward 后无法暂停

iOS AVPlayer not able to pause after rewind/fastforward

ios

objective-c

avplayer